Usage

Arguments

Details

Argument fast is used to return only the row scores of
Y in function permutest.coca, which speeds the
permutation test considerably.

Value

If fast = TRUE, a matrix of row scores for matrix
Y (see scores below). If
fast = FALSE a list with the following components:

weights

A list with components X and
Y containing the left and right singular vectors
respectivley of the SVD on the triplets.

scores

A list with components X and
Y, containing the row scores of the
X and Y species matrices. These are
the result of a matrix multiplication of X by the
left singular vectors and Y by the right singular
vectors.

lambda

the Eigenvalues of the analysis (the square of the
singular values from the SVD.

call

the matched function call.

Note

This function is not meant to be called directly by the user. If
you wish to use it study the code in
permutest.coca to see how it should be called.